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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
body{
  margin: 0;
  padding: 0;
}
.bgvideo{
  display: block;
  height: 100vh;
  width: 100vw;
  object-fit: cover;/*覆盖*/
  pointer-events: none;/*不响应鼠标事件*/
}

</style>
<body>
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    <video controls preload="metadata" poster="">
      <source src="./videos/rabbit320.webm" type="video/webm">
      <source src="./videos/rabbit320.mp4" type="video/mp4">
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   <video
      src="./videos/Tom_and_Jerry.mp4"
      poster="./imgs/TomandJerryTitleCardc.jpg"
      controls
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-->

  <video autoplay loop muted src="./videos/Pexels Videos 1409899.mp4" class="bgvideo"></video>
<script>



</script>
</body>
</html>